diff --git a/requirements.txt b/requirements.txt
index 94a3c61..c71a71c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -104,7 +104,7 @@ libarchive-c==2.8
 lifelines==0.19.5
 llvmlite==0.24.0
 locket==0.2.0
-lxml==4.2.5
+lxml==4.6.3
 MarkupPy==1.14
 MarkupSafe==1.0
 matplotlib==2.2.3